/***************************************************************************
 *   Copyright (C) 2008 by BogDan Vatra                                    *
 *   bogdan@licentia.eu                                                    *
 *                                                                         *
 *   This program is free software: you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation, either version 3 of the License, or     *
 *   (at your option) any later version.                                   *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
 ***************************************************************************/

#include "querylocateselectionmodel.h"
#include "query.h"
#include <QDebug>

namespace SQL
{

QueryLocateSelectionModel::QueryLocateSelectionModel( QAbstractItemModel * model, Query *query, const QString & firstFieldName, bool sorted, QObject * parent):
	QItemSelectionModel(model, parent), m_query(query), m_firstFieldName(firstFieldName), m_sorted(sorted)
{
	connect(this,SIGNAL(currentChanged( const QModelIndex & , const QModelIndex & )), 
			SLOT(indexChanged( const QModelIndex & , const QModelIndex & )));
}

void QueryLocateSelectionModel::indexChanged( const QModelIndex & current, const QModelIndex & previous )
{
	if (current.row()==previous.row() || current.column() || !m_query || !m_firstFieldName.length())
		return;

	if (!m_query->locate( m_firstFieldName, model()->data( current ), false, false, m_sorted))
		if (m_sorted)
			if (m_query->locate( m_firstFieldName, model()->data( current ), false, false, false))
				m_sorted=false;
}

}
